Device for introducing superposed plates of different metals



F. JORDAN 7 1,955,072 v DEVICE FOR INTRODUCING SUPERPOSED PLATES OFDIFFERENT METALS April 17, 1934,

Filed Dec. 5, 1952 55 In mills for the simultaneous rolling of severalprevent the rear portion of the plates from being 110 Patented Apr. 17,1 934 v I DEVICE FOR INTRODUCING SUPEBPOSED PLATES OF DIFFERENT LIETALSFranz Jordan, Berlin-Charlottenburg, Germany Application December 3,1932, Serial No. 645,616 In Germany February 2, 1930 1 Claim. (Cl.80-43) This invention relates to a method and appaplates it is knownalready to employ a wedge for ratus for introducing superposed plates ofsoft exerting pressure upon the plates vertically to and harder materialinto a rolling mill prior to their surface prior to feeding them intothe rolluniting them by rolling. ers, but this device is unsuited forplating mills.

5 When plates made of a soft material, such as Evenif the wedge shouldbe temporarily adjustaluminum, are to be united by rolling with platesable to slight pressure, the latter is not resilient, made of hardermetals, considerable diillculties which, however, is absolutelynecessary if sheets arise owing to the fact that the diiferent metals,of different degrees of hardness and extensibility .on account of theirunequal extensibility, tend to are to be rolled together, for otherwisethe softer be vertically or laterally displaced when introplates will betorn or at least deformed.

duced between the rollers. Therefore, plated It is further known toarrange yieldingly disrolled material of this class hitherto containedposed rollers in front of the main rollers, but defective portions, i.e., parts not covered by soft these rollers were hitherto intended forshaping material, which involved considerable waste, since and, for thispurpose, pressed against the work only the perfect parts could be cutout and used. at regular intervals, while the yieldingly disposed 79 Theinvention proposes to eliminate these rollers according to the inventionmerely exert drawbacks by providing yieldingly disposed guide permanentslight pressure upon the plates to be rollers having lateral collars orflanges to prevent rolled in a direction perpendicular to theirsurlater'al displacement of the pile of hard and soft faces.

metal plates on the roller table and by rendering By way of example, theinvention is illustrated 75 the rollers yielding so as to avoid verticaldis-. in the accompanying drawing, in which Figures placement of thesheets relative to one another. 1 to 3 disclose one embodiment thereof.

The resilient pressure of the rollers keeps the Referring to thedrawing, 1 and 2 are the press plates passing through the mill smoothlysuperrolls of the mill, 3 is the feeding table and 4 is a posed,notwithstanding the difference in extenmovable stop having the form of aslide attached 89 sion, and the process of overlapping the harder to theedge of the table 3. Above the table 3, a metal by the softer one willgo on steadily. Roller frame 5 carries two freely rolling guide rollers6 t pressure in the mill will act uniformly, and the for depressing theset of plates ll and preventing surfaces will be rolled together withoutany detrithe ends thereof to bend up when the front part of mentaldisplacement and therefore without causthe plates has entered the mill,the rollers 6 having waste; ing edges or collars '7 like flanged wheels,which In view of the different extensibility of soft serveas lateralguides for the plates and, simuland hard metals the plates are cutindifferent taneously, turn down the projecting edge'of the lengths, theharder plates being longer than the top plate towards the edges of thelower plates.

soft plates so as to produce a plate uniformly The rollers 6 are subjectto the action of the closed on all sides. springs 8 which cause theplatesv 11 to be held The plates are placed loosely upon each othertogether by slight pressure. so as to be flush on the feeding side, withtheir The entire device can be readily lifted off from edges forming auniform surface while the rear the table 3 by means of the spindle 9 andheld high 40 edges of the harder plates extend beyond those enough tocontinue the rolling of the plated sheets of the softer plates. Toinsure uniform feedingor hands in the same mill and heat without inofthe plates a special slide corresponding in shape terference from thefeeding device. tothe differences in length of the plates and fit- 10indicates a slider for pushing the set of difting with its clearancesexactly into the profile ferent plates on the table 3 with its frontedge 45 formed by the rear ends of the plates is emagainst the stop 4and then into the mill after the ployed, so that the layers of plateswill not vary stop 4 has dropped down. Since the plates differ in thelongitudinal direction, and the pile will be in length at their rearends, owing to their differintroduced between the rollers of the mill inits ence in extensibility, the slider 10 is profiled at originalposition, the slide being designed for its driving edge so as to insurethe feeding of the 50 either manual or mechanical operations. To keepplates to the rollers 1 and 2 without displacing the plates flush infront, the invention provides them in longitudinal direction.

a stop against which the pile of plates is pushed .The number of guiderollers 6 depends on the by the slide, the stop being preferably movablelength of the plates or block, so that one, two or so as to be out ofthe way when not in use. three of these rollers may be used as requiredto unequal plate lengths, a vertically movable stop for aligning theplates at their front edge before the feeding thereof to said pressrolls, and a plurality of flanged pressure rollers disposed above saidfeed table for pressing said plates into the conformation of thefinished plate and for preventing vertical displacement 01' the plateswhile permitting longitudinal motion of the softer plates.

FRANZ JORDAN.

